“Cartoon and Comedy Sounds » Comedy_Music_Samples_048.wav”
by jalastram
https://freesound.org/people/jalastram/sounds/457997/
through a Creative Commons Attribution License (CC-BY-3.0)
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the following sampled media is from The Internet Archive:

“Record and replay debugging with “rr””
by Robert O’Callahan
uploaded by CarlFK
https://archive.org/details/lca2016-Record_and_replay_debugging_with_rr
through a Creative Commons Attribution License (CC-BY-3.0)
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the following sampled media is from YouTube:

“Sounds of New England — Skateboarding in Boston”
by Bu Newsservice
https://www.youtube.com/watch?v=0iNtaoVRvMA
through a Creative Commons Attribution License (CC-BY-3.0)